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M9621031.TXT
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1996-02-26
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Document 1031
DOCN M9621031
TI Intrapatient variability of the human immunodeficiency virus type 2
envelope V3 loop.
DT 9602
AU Sankale JL; de la Tour RS; Renjifo B; Siby T; Mboup S; Marlink RG; Essex
ME; Kanki PJ; Department of Cancer Biology, Harvard School of Public
Health,; Boston, Massachusetts 02115, USA.
SO AIDS Res Hum Retroviruses. 1995 May;11(5):617-23. Unique Identifier :
AIDSLINE GENBANK/U24388
AB Studies of HIV-2 infection have shown lower rates of sexual and
perinatal transmission and a prolonged incubation period to AIDS as
compared to HIV-1. To evaluate the role of genetic variation in HIV
pathogenesis, we studied intrapatient variability in the V3 loop of the
HIV-2 envelope gene over time in five seropositive individuals. Proviral
sequences derived from uncultured PBMC DNA (n = 102) demonstrated an
average sequence heterogeneity within a sample of 1.4% (0-4.1%). This
was significantly lower than the V3 sequence heterogeneity observed in
HIV-1, which can be as high as 6.1%. In HIV-2-seropositive healthy
patients the average intrapatient nucleotide variability rate was 0.6%
compared to 2.0% in patients with clinical AIDS. The lower rate of
variability between HIV-2 and HIV-1 is compatible with differences in
transmission and pathogenesis of these two related viruses.
DE Amino Acid Sequence Base Sequence CD4 Lymphocyte Count DNA Primers
Female Follow-Up Studies Human HIV Envelope Protein gp120/*GENETICS
HIV Infections/BLOOD/PHYSIOPATHOLOGY/*VIROLOGY HIV-1/GENETICS
HIV-2/*GENETICS/ISOLATION & PURIF Male Molecular Sequence Data
Peptide Fragments/*GENETICS Polymerase Chain Reaction Sequence
Homology, Amino Acid Support, Non-U.S. Gov't Support, U.S. Gov't,
Non-P.H.S. Support, U.S. Gov't, P.H.S. *Variation (Genetics) JOURNAL
ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).